Practice question
Question
Phytochrome functions mainly to regulate:
Explanation
Go with B — Photomorphogenesis. Under PHYTOCHROME, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) Photosynthesis only; C) Transpiration; D) Respiration. When two options sound similar, choose the one that matches the textbook definition most tightly.